Date: Fri, 21 Oct 2011 00:19:32 +0200
From: Jan Hubicka <hubicka@ucw.cz>
Yes, if we scan assembler, we likely want -fno-fat-lto-objects.
then IIUC you need to patch *all* torture tests that use
scan-assembler and scan-assembler-not. Alternatively, patch
somewhere else, like not passing it if certain directives are
used, like scan-assembler{,-not}. And either way, is it safe to
add that option always, not just when also passing "-flto" or
something?
Hmm, some of assembler scans still works because they check for
presence of symbols we output anyway, but indeed, it would make more
sense to automatically imply -ffat-lto-object when scan-assembler
is used. I am not sure if my dejagnu skill as on par here however.
Maybe you could make amends ;) by testing the following, which
seems to work at least for dg-torture.exp and cris-elf/cris-sim,
in which -ffat-lto-object is automatically added for each
scan-assembler and scan-assembler-not test, extensible for other
dg-final actions without polluting with checking LTO options and
whatnot across the files. I checked (and corrected) so it also
works when !check_effective_target_lto by commenting out the
setting in the second chunk.